{"id":1873,"date":"2025-04-22T17:36:33","date_gmt":"2025-04-22T09:36:33","guid":{"rendered":"https:\/\/www.ductileironsuppliers.com\/?post_type=product&p=1873"},"modified":"2025-04-22T17:36:33","modified_gmt":"2025-04-22T09:36:33","slug":"class-k8-dn450-ductile-iron-pipe-suppliers","status":"publish","type":"product","link":"https:\/\/www.ductileironsuppliers.com\/ar\/product\/class-k8-dn450-ductile-iron-pipe-suppliers","title":{"rendered":"\u0645\u0648\u0631\u0651\u062f\u0648 \u0623\u0646\u0627\u0628\u064a\u0628 \u062d\u062f\u064a\u062f \u0627\u0644\u062f\u0643\u062a\u0627\u064a\u0644 \u0645\u0646 \u0627\u0644\u0641\u0626\u0629 K8 DN450"},"content":{"rendered":"

Class\u00a0K8\u00a0DN450 ductile iron pipe has a nominal wall thickness of 7.6\u00a0mm<\/strong>, calculated per ISO\u00a02531\u2019s formula e\u00a0=\u00a0K\u00a0\u00d7\u00a0(0.5\u00a0+\u00a00.001\u00a0\u00d7\u00a0DN)<\/em> (K\u00a0=\u00a08, DN\u00a0=\u00a0450) . This thickness class delivers robust structural capacity for medium\u2011pressure potable water, sewage, irrigation, gas and fire\u2011protection mains, and supports a design life well beyond 100\u00a0years<\/strong> when internally cement\u2011mortar lined and optionally externally sleeved in polyethylene . Field\u2011proven joint systems\u2014push\u2011on (\u201cTyton\u201d), mechanical, and flanged\u2014ensure rapid, leak\u2011free assembly to ISO\u00a02531, AWWA\u00a0C111 and ANSI\u00a0B16.1 standards . In the K\u2011series, wall thickness rises progressively from K7\u00a0(6.65\u00a0mm) to K8\u00a0(7.6\u00a0mm) to K9\u00a0(8.55\u00a0mm) to K12\u00a0(11.4\u00a0mm), with global market prices per ton averaging USD\u00a0400\u2013720<\/strong> (K7), USD\u00a0482\u2013529<\/strong> (K8), USD\u00a0545\u2013645<\/strong> (K9) and USD\u00a0482\u2013526<\/strong> (K12).<\/p>\n

Applications<\/h2>\n

Potable Water Distribution<\/strong>
K8\u00a0DN450 ensures leak\u2011tight, large\u2011diameter mains in municipal water networks, maintaining hydraulic performance under variable demand and minimizing losses .<\/p>\n

Sewage & Drainage<\/strong>
Its abrasion\u2011resistant iron core and smooth cement\u2011mortar lining convey grit\u2011laden wastewater reliably in gravity or force mains .<\/p>\n

Irrigation Systems<\/strong>
Stable hydraulic characteristics under fluctuating flows make it ideal for agricultural and horticultural distribution lines .<\/p>\n

Gas Distribution<\/strong>
When produced per EN\u00a0969 and coated externally, DIP safely transports natural gas in medium\u2011pressure networks .<\/p>\n

Fire\u2011Protection Mains<\/strong>
High ductility and surge resilience support hydrant loops and feeder mains, ensuring ready\u2011response water delivery under emergency conditions .<\/p>\n

Service Life<\/h2>\n
    \n
  • \n

    Cement\u2011Mortar Lining (CML):<\/strong> Predicted life >\u00a0100\u00a0years based on long\u2011term utility surveys and coupon testing .<\/p>\n<\/li>\n

  • \n

    Polyethylene Encasement:<\/strong> Loose\u2011fit sleeving per ISO\u00a08180 extends life to ~110\u00a0years in aggressive soils, proven at Everglades test sites .<\/p>\n<\/li>\n

  • \n

    Life\u2011Cycle Savings:<\/strong> A Black\u00a0&\u00a0Veatch study for Huntsville Utilities showed $666,999 annual pumping\u2011cost savings, totaling a $17\u00a0million PV benefit over 50\u00a0years compared to PVC mains .<\/p>\n<\/li>\n<\/ul>\n

    Installation & Connection<\/h2>\n
      \n
    • \n

      Push\u2011On (\u201cTyton\u201d) Joints:<\/strong> Elastomeric gasket in a spigot\u2011socket for bolt\u2011free, rapid, leak\u2011tight assembly per ISO\u00a02531 dimensions .<\/p>\n<\/li>\n

    • \n

      Mechanical Joints:<\/strong> Gland\u2011and\u2011bolt restraint per AWWA\u00a0C111, enabling both restrained and unrestrained connections for valves and fittings .<\/p>\n<\/li>\n

    • \n

      Flanged Joints:<\/strong> ANSI\u00a0B16.1 (or EN\u00a01092) flanges permit easy disassembly, alignment control and high axial\u2011load resistance .<\/p>\n<\/li>\n

    • \n

      Best Practices:<\/strong> Trenching with 150\u00a0mm graded bedding, deflection \u2264\u00a03\u00a0% of DN, hydrostatic testing and chlorination per ISO\u00a02531\/AWWA\u00a0C600 maximize joint performance and longevity .<\/p>\n<\/li>\n<\/ul>\n

      K\u2011Series Comparison & Pricing<\/h2>\n
      \n

       <\/p>\n

      \n\n\n\n\n\n\n\n\n
      Class<\/th>\nWall Thickness<sup>1<\/sup> (mm)<\/th>\nPrice Range (USD\/ton)<sup>2<\/sup><\/th>\n<\/tr>\n<\/thead>\n
      K7<\/strong><\/td>\n6.65\u00a0=\u00a07\u00d7(0.5+0.001\u00d7450)<\/td>\n$400\u00a0\u2013\u00a0720<\/td>\n<\/tr>\n
      K8<\/strong><\/td>\n7.60\u00a0=\u00a08\u00d7(0.5+0.001\u00d7450)<\/td>\n$482\u00a0\u2013\u00a0529<\/td>\n<\/tr>\n
      K9<\/strong><\/td>\n8.55\u00a0=\u00a09\u00d7(0.5+0.001\u00d7450)<\/td>\n$545\u00a0\u2013\u00a0645<\/td>\n<\/tr>\n
      K12<\/strong><\/td>\n11.40\u00a0=12\u00d7(0.5+0.001\u00d7450)<\/td>\n$482 \u2013 526<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

      <sup>1<\/sup>Per ISO 2531 nominal\u2011thickness formula.
      <sup>2<\/sup>Global online market ranges from Alibaba and Made\u2011in\u2011China surveys.<\/p>\n

      International Standards<\/h2>\n
        \n
      • \n

        ISO\u00a02531 \/ EN\u00a0545 \/ EN\u00a0598:<\/strong> Pipe dimensions, linings & joint performance.<\/p>\n<\/li>\n

      • \n

        GB\/T\u00a013295\u20102019:<\/strong> Chinese national standard for DIP, fittings & joints in water\/gas applications.<\/p>\n<\/li>\n

      • \n

        ISO\u00a08180:<\/strong> Polyethylene sleeving for external corrosion control.<\/p>\n<\/li>\n

      • \n

        AWWA\u00a0C111\/A21.11:<\/strong> Mechanical\u2011joint specifications (DN 80\u2013600 mm).<\/p>\n<\/li>\n

      • \n

        ANSI\u00a0B16.1:<\/strong> Flanged\u2011joint dimensions & pressure ratings.<\/p>\n<\/li>\n

      • \n

        EN\u00a0969:<\/strong> Gas\u2011pipeline ductile\u2011iron pipe, fittings & accessories (\u2264 16 bar).<\/p>\n<\/li>\n<\/ul>\n

        Advantages<\/h2>\n
          \n
        • \n

          Outstanding Longevity:<\/strong> 100\u00a0+\u00a0year design life minimizes replacements and downtime .<\/p>\n<\/li>\n

        • \n

          High Strength & Toughness:<\/strong> Tensile strength typically \u2265\u00a0420\u00a0MPa resists surge and external loads .<\/p>\n<\/li>\n

        • \n

          Superior Corrosion Control:<\/strong> Internal CML (ANSI\/AWWA\u00a0C104), plus external zinc\/bitumen coatings and LPS .<\/p>\n<\/li>\n

        • \n

          Joint Versatility:<\/strong> Choice of push\u2011on, mechanical, flanged or restrained systems for any site condition .<\/p>\n<\/li>\n

        • \n

          Sustainable & Recyclable:<\/strong> Made from recycled iron with lower life\u2011cycle energy compared to thermoplastics .<\/p>\n<\/li>\n<\/ul>\n

          FAQ<\/h2>\n

          Q1: How do K classes differ?<\/strong>
          They follow e\u00a0=\u00a0K\u00b7(0.5+0.001\u00d7DN)<\/em>\u2014for DN450, K7=6.65\u00a0mm, K8=7.6\u00a0mm, K9=8.55\u00a0mm, K12=11.4\u00a0mm\u2014reflecting rising wall\u2011thickness and structural\/reservoir pressure capacity .<\/p>\n

          Q2: Which joint type should I choose?<\/strong>
          \u2013 Push\u2011on for speed & simplicity; Mechanical for restrained connections; Flanged for re\u2011assemblies or high axial loads .<\/p>\n

          Q3: Is polyethylene sleeving necessary?<\/strong>
          Recommended in aggressive soils: adds ~10\u00a0% life extension to >\u00a0110\u00a0years; proven by DIPRA Everglades tests .<\/p>\n

          Q4: What sizes & lengths are available?<\/strong>
          DN\u00a080\u20132600\u00a0mm in 6\u00a0m laying lengths (5.7\u00a0m for export containers), with custom cuts on request .<\/p>\n

          Q5: Can DIP be used in seismic zones?<\/strong>
          Yes\u2014restrained joints (tie\u2011rod, ball\u2011and\u2011socket) accommodate ground movement and axial loads for seismic resilience .<\/p>\n

          Case Studies<\/h2>\n
            \n
          • \n

            Huntsville Utilities, AL:<\/strong> Journal\u00a0AWWA life\u2011cycle analysis found $666,999\/year pumping\u2011cost savings and $17\u00a0million PV benefit over 50 years by choosing DIP vs. PVC .<\/p>\n<\/li>\n

          • \n

            Everglades City, FL:<\/strong> DIP with LPS remained in \u201cexcellent condition\u201d after 10\u00a0+\u00a0years in corrosive muck (140\u2013240\u00a0\u03a9\u2011cm) .<\/p>\n<\/li>\n<\/ul>\n

            ductile iron pipe dimensions<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
            <\/td>\n<\/td>\n<\/td>\nPipe body weight \uff08kg\/m)<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
            (Inside Diameter)<\/td>\n(Outside Diameter)<\/td>\nSocket Weight<\/td>\nK8<\/td>\nK9<\/td>\nK10<\/td>\nC class<\/td>\nTotal weight of Active Length=6M (kg)<\/td>\nTotal weight of Active Length=5.7M (kg)<\/td>\n<\/tr>\n
            DN(mm)<\/td>\nOD(mm)<\/td>\n\u2248 kg<\/td>\nClass<\/td>\nkg\/m<\/td>\nK8<\/td>\nK9<\/td>\nK10<\/td>\nC class<\/td>\nK8<\/td>\nK9<\/td>\nK10<\/td>\nC class<\/td>\n<\/tr>\n
            80<\/td>\n98<\/td>\n3.40<\/td>\n12.20<\/td>\n12.20<\/td>\n12.20<\/td>\nC40<\/td>\n9.10<\/td>\n77.00<\/td>\n77.00<\/td>\n77.00<\/td>\n58.00<\/td>\n73.00<\/td>\n73.00<\/td>\n73.00<\/td>\n55.00<\/td>\n<\/tr>\n
            100<\/td>\n118<\/td>\n4.30<\/td>\n14.90<\/td>\n15.10<\/td>\n15.10<\/td>\nC40<\/td>\n11.12<\/td>\n93.70<\/td>\n95.00<\/td>\n95.00<\/td>\n71.00<\/td>\n90.00<\/td>\n91.00<\/td>\n90.00<\/td>\n68.00<\/td>\n<\/tr>\n
            125<\/td>\n144<\/td>\n5.70<\/td>\n<\/td>\n18.90<\/td>\n<\/td>\nC40<\/td>\n<\/td>\n<\/td>\n119.00<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
            150<\/td>\n170<\/td>\n7.10<\/td>\n21.80<\/td>\n22.80<\/td>\n22.80<\/td>\nC40<\/td>\n16.48<\/td>\n138.00<\/td>\n144.00<\/td>\n144.00<\/td>\n106.00<\/td>\n132.00<\/td>\n138.00<\/td>\n137.00<\/td>\n101.00<\/td>\n<\/tr>\n
            200<\/td>\n222<\/td>\n10.30<\/td>\n28.70<\/td>\n30.60<\/td>\n30.60<\/td>\nC40<\/td>\n22.62<\/td>\n183.00<\/td>\n194.00<\/td>\n194.00<\/td>\n146.00<\/td>\n174.00<\/td>\n185.00<\/td>\n185.00<\/td>\n139.00<\/td>\n<\/tr>\n
            250<\/td>\n274<\/td>\n14.20<\/td>\n35.60<\/td>\n40.20<\/td>\n44.30<\/td>\nC40<\/td>\n32.63<\/td>\n228.00<\/td>\n255.00<\/td>\n280.00<\/td>\n210.00<\/td>\n218.00<\/td>\n244.00<\/td>\n267.00<\/td>\n200.00<\/td>\n<\/tr>\n
            300<\/td>\n326<\/td>\n18.90<\/td>\n45.30<\/td>\n50.80<\/td>\n56.30<\/td>\nC30<\/td>\n43.90<\/td>\n290.00<\/td>\n323.00<\/td>\n357.00<\/td>\n282.00<\/td>\n278.00<\/td>\n309.00<\/td>\n340.00<\/td>\n269.00<\/td>\n<\/tr>\n
            350<\/td>\n378<\/td>\n23.70<\/td>\n55.90<\/td>\n63.20<\/td>\n69.60<\/td>\nC30<\/td>\n51.88<\/td>\n359.00<\/td>\n403.00<\/td>\n441.00<\/td>\n335.00<\/td>\n343.00<\/td>\n384.00<\/td>\n420.00<\/td>\n319.00<\/td>\n<\/tr>\n
            400<\/td>\n429<\/td>\n29.50<\/td>\n67.30<\/td>\n75.50<\/td>\n83.70<\/td>\nC30<\/td>\n60.78<\/td>\n433.00<\/td>\n482.00<\/td>\n532.00<\/td>\n394.00<\/td>\n414.00<\/td>\n460.00<\/td>\n506.00<\/td>\n376.00<\/td>\n<\/tr>\n
            450<\/td>\n480<\/td>\n38.30<\/td>\n80.00<\/td>\n89.30<\/td>\n99.00<\/td>\nC30<\/td>\n73.30<\/td>\n515.00<\/td>\n575.00<\/td>\n632.00<\/td>\n472.00<\/td>\n492.00<\/td>\n550.00<\/td>\n597.00<\/td>\n450.00<\/td>\n<\/tr>\n
            500<\/td>\n532<\/td>\n42.80<\/td>\n92.80<\/td>\n104.30<\/td>\n115.60<\/td>\nC30<\/td>\n87.20<\/td>\n600.00<\/td>\n669.00<\/td>\n736.00<\/td>\n566.00<\/td>\n572.00<\/td>\n638.00<\/td>\n702.00<\/td>\n540.00<\/td>\n<\/tr>\n
            600<\/td>\n635<\/td>\n59.30<\/td>\n122.00<\/td>\n137.30<\/td>\n152.00<\/td>\nC30<\/td>\n120.62<\/td>\n791.00<\/td>\n882.00<\/td>\n971.00<\/td>\n783.00<\/td>\n755.00<\/td>\n842.00<\/td>\n926.00<\/td>\n747.00<\/td>\n<\/tr>\n
            700<\/td>\n738<\/td>\n79.10<\/td>\n155.00<\/td>\n173.90<\/td>\n193.00<\/td>\nC25<\/td>\n142.15<\/td>\n1009.00<\/td>\n1123.00<\/td>\n1237.00<\/td>\n932.00<\/td>\n963.00<\/td>\n1071.00<\/td>\n1179.00<\/td>\n889.00<\/td>\n<\/tr>\n
            800<\/td>\n842<\/td>\n102.60<\/td>\n192.00<\/td>\n215.20<\/td>\n239.00<\/td>\nC25<\/td>\n177.07<\/td>\n1255.00<\/td>\n1394.00<\/td>\n1537.00<\/td>\n1165.00<\/td>\n1197.00<\/td>\n1330.00<\/td>\n1465.00<\/td>\n1112.00<\/td>\n<\/tr>\n
            900<\/td>\n945<\/td>\n129.60<\/td>\n232.00<\/td>\n260.20<\/td>\n289.00<\/td>\nC25<\/td>\n197.68<\/td>\n1521.00<\/td>\n1691.00<\/td>\n1863.00<\/td>\n1446.00<\/td>\n1452.00<\/td>\n1613.00<\/td>\n1777.00<\/td>\n1257.00<\/td>\n<\/tr>\n
            1000<\/td>\n1048<\/td>\n161.30<\/td>\n275.00<\/td>\n309.30<\/td>\n343.20<\/td>\nC25<\/td>\n266.28<\/td>\n1811.00<\/td>\n2017.00<\/td>\n2221.00<\/td>\n1759.00<\/td>\n1729.00<\/td>\n1925.00<\/td>\n2118.00<\/td>\n1679.00<\/td>\n<\/tr>\n
            1100<\/td>\n1152<\/td>\n194.70<\/td>\n<\/td>\n362.80<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n2372.00<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
            1200<\/td>\n1255<\/td>\n237.70<\/td>\n374.00<\/td>\n420.10<\/td>\n466.10<\/td>\nC25<\/td>\n373.88<\/td>\n2482.00<\/td>\n2758.00<\/td>\n3034.00<\/td>\n2481.00<\/td>\n2370.00<\/td>\n2632.00<\/td>\n2894.00<\/td>\n2369.00<\/td>\n<\/tr>\n
            1400<\/td>\n1462<\/td>\n279.30<\/td>\n<\/td>\n547.20<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n3563.00<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            ductile iron pipe\u00a0Mechanical property<\/h2>\n\n\n\n\n\n\n\n\n\n
            Mechanical Property<\/td>\n<\/tr>\n
            Nominal Diameter<\/td>\nHydraulic test<\/td>\nTensile strength<\/td>\nElogation<\/td>\nYield strength<\/td>\nBending strength<\/td>\nBrinell hardness<\/td>\nThickness of cement lining<\/td>\n<\/tr>\n
            DN(MM)<\/td>\nMpa<\/td>\nMpa<\/td>\n%<\/td>\nMpa<\/td>\nMpa<\/td>\nHB<\/td>\nmm<\/td>\n<\/tr>\n
            DN80-DN300<\/td>\n5<\/td>\n\u2265420<\/td>\n\u226510<\/td>\n\u2265300<\/td>\n\u2265590<\/td>\n\u2264230<\/td>\n3<\/td>\n<\/tr>\n
            DN350-DN600<\/td>\n4<\/td>\n\u2265420<\/td>\n\u226510<\/td>\n\u2265300<\/td>\n\u2265590<\/td>\n\u2264230<\/td>\n5<\/td>\n<\/tr>\n
            DN700-DN1000<\/td>\n3.2<\/td>\n\u2265420<\/td>\n\u226510<\/td>\n\u2265300<\/td>\n\u2265590<\/td>\n\u2264230<\/td>\n6<\/td>\n<\/tr>\n
            DN1100-DN1600<\/td>\n2.5<\/td>\n\u2265420<\/td>\n\u22657<\/td>\n\u2265300<\/td>\n\u2265590<\/td>\n\u2264230<\/td>\n\u2026..<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":1874,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"tags":[],"products":[10],"class_list":["post-1873","product","type-product","status-publish","has-post-thumbnail","hentry","products-ductile-iron-pipes"],"acf":[],"yoast_head":"\nClass K8 DN450 ductile iron pipe suppliers - Jingang LuoKaiwei<\/title>\n<meta name=\"description\" content=\"Class\u00a0K8\u00a0DN450 ductile iron pipe: optimal for medium\u2011pressure water, sewage, gas & fire mains; 100\u00a0+\u00a0year lifespan; push\u2011on, mechanical & flanged joints; K7\u2013K12 series comparison; meets ISO\u00a02531, EN\u00a0545, GB\/T\u00a013295; FAQs & case studies.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ductileironsuppliers.com\/ar\/product\/class-k8-dn450-ductile-iron-pipe-suppliers\/\" \/>\n<meta property=\"og:locale\" content=\"ar_AR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Class K8 DN450 ductile iron pipe suppliers - Jingang LuoKaiwei\" \/>\n<meta property=\"og:description\" content=\"Class\u00a0K8\u00a0DN450 ductile iron pipe: optimal for medium\u2011pressure water, sewage, gas & fire mains; 100\u00a0+\u00a0year lifespan; push\u2011on, mechanical & flanged joints; K7\u2013K12 series comparison; meets ISO\u00a02531, EN\u00a0545, GB\/T\u00a013295; FAQs & case studies.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ductileironsuppliers.com\/ar\/product\/class-k8-dn450-ductile-iron-pipe-suppliers\/\" \/>\n<meta property=\"og:site_name\" content=\"Jingang LuoKaiwei\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ductileironsuppliers.com\/wp-content\/uploads\/2025\/04\/te0wl-uv1ls.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"720\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/product\\\/class-k8-dn450-ductile-iron-pipe-suppliers\",\"url\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/product\\\/class-k8-dn450-ductile-iron-pipe-suppliers\",\"name\":\"Class K8 DN450 ductile iron pipe suppliers - Jingang LuoKaiwei\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/product\\\/class-k8-dn450-ductile-iron-pipe-suppliers#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/product\\\/class-k8-dn450-ductile-iron-pipe-suppliers#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/wp-content\\\/uploads\\\/2025\\\/04\\\/te0wl-uv1ls.webp\",\"datePublished\":\"2025-04-22T09:36:33+00:00\",\"description\":\"Class\u00a0K8\u00a0DN450 ductile iron pipe: optimal for medium\u2011pressure water, sewage, gas & fire mains; 100\u00a0+\u00a0year lifespan; push\u2011on, mechanical & flanged joints; K7\u2013K12 series comparison; meets ISO\u00a02531, EN\u00a0545, GB\\\/T\u00a013295; FAQs & case studies.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/product\\\/class-k8-dn450-ductile-iron-pipe-suppliers#breadcrumb\"},\"inLanguage\":\"ar\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.ductileironsuppliers.com\\\/product\\\/class-k8-dn450-ductile-iron-pipe-suppliers\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ar\",\"@id\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/product\\\/class-k8-dn450-ductile-iron-pipe-suppliers#primaryimage\",\"url\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/wp-content\\\/uploads\\\/2025\\\/04\\\/te0wl-uv1ls.webp\",\"contentUrl\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/wp-content\\\/uploads\\\/2025\\\/04\\\/te0wl-uv1ls.webp\",\"width\":720,\"height\":720,\"caption\":\"Class K8 DN450 ductile iron pipe suppliers\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/product\\\/class-k8-dn450-ductile-iron-pipe-suppliers#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Products\",\"item\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/product\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Class K8 DN450 ductile iron pipe suppliers\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/#website\",\"url\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/\",\"name\":\"Jingang LuoKaiwei\",\"description\":\"Ductile iron pipe suppliers\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ar\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/#organization\",\"name\":\"Jingang LuoKaiwei\",\"url\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ar\",\"@id\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Jingang LuoKaiwei\"},\"image\":{\"@id\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u0645\u0648\u0631\u062f\u0648 \u0623\u0646\u0627\u0628\u064a\u0628 \u062d\u062f\u064a\u062f \u0627\u0644\u062f\u0643\u062a\u0627\u064a\u0644 \u0645\u0646 \u0627\u0644\u0641\u0626\u0629 K8 DN450 - Jingang LuoKaiwei","description":"\u0623\u0646\u0627\u0628\u064a\u0628 \u062d\u062f\u064a\u062f \u0627\u0644\u062f\u0643\u062a\u0627\u064a\u0644 \u0645\u0646 \u0627\u0644\u0641\u0626\u0629 K8 DN450: \u0645\u062b\u0627\u0644\u064a\u0629 \u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0645\u064a\u0627\u0647 \u0645\u062a\u0648\u0633\u0637\u0629 \u0627\u0644\u0636\u063a\u0637 \u0648\u0627\u0644\u0635\u0631\u0641 \u0627\u0644\u0635\u062d\u064a \u0648\u0627\u0644\u063a\u0627\u0632 \u0648\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u062d\u0631\u064a\u0642\u061b \u0639\u0645\u0631 \u0627\u0641\u062a\u0631\u0627\u0636\u064a \u064a\u0632\u064a\u062f \u0639\u0646 100 \u0639\u0627\u0645\u061b \u0648\u0635\u0644\u0627\u062a \u062f\u0641\u0639\u060c \u0648\u0648\u0635\u0644\u0627\u062a \u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u0629 \u0648\u0630\u0627\u062a \u062d\u0648\u0627\u0641\u061b \u0645\u0642\u0627\u0631\u0646\u0629 \u0633\u0644\u0633\u0644\u0629 K7-K12\u061b \u062a\u062a\u0648\u0627\u0641\u0642 \u0645\u0639 \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a ISO 2531\u060c EN 545\u060c GB\/T 13295\u061b \u0623\u0633\u0626\u0644\u0629 \u0648\u0623\u062c\u0648\u0628\u0629 \u0648\u062f\u0631\u0627\u0633\u0627\u062a \u062d\u0627\u0644\u0629.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.ductileironsuppliers.com\/ar\/product\/class-k8-dn450-ductile-iron-pipe-suppliers\/","og_locale":"ar_AR","og_type":"article","og_title":"Class K8 DN450 ductile iron pipe suppliers - Jingang LuoKaiwei","og_description":"Class\u00a0K8\u00a0DN450 ductile iron pipe: optimal for medium\u2011pressure water, sewage, gas & fire mains; 100\u00a0+\u00a0year lifespan; push\u2011on, mechanical & flanged joints; K7\u2013K12 series comparison; meets ISO\u00a02531, EN\u00a0545, GB\/T\u00a013295; FAQs & case studies.","og_url":"https:\/\/www.ductileironsuppliers.com\/ar\/product\/class-k8-dn450-ductile-iron-pipe-suppliers\/","og_site_name":"Jingang LuoKaiwei","og_image":[{"width":720,"height":720,"url":"https:\/\/www.ductileironsuppliers.com\/wp-content\/uploads\/2025\/04\/te0wl-uv1ls.webp","type":"image\/webp"}],"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.ductileironsuppliers.com\/product\/class-k8-dn450-ductile-iron-pipe-suppliers","url":"https:\/\/www.ductileironsuppliers.com\/product\/class-k8-dn450-ductile-iron-pipe-suppliers","name":"\u0645\u0648\u0631\u062f\u0648 \u0623\u0646\u0627\u0628\u064a\u0628 \u062d\u062f\u064a\u062f \u0627\u0644\u062f\u0643\u062a\u0627\u064a\u0644 \u0645\u0646 \u0627\u0644\u0641\u0626\u0629 K8 DN450 - Jingang LuoKaiwei","isPartOf":{"@id":"https:\/\/www.ductileironsuppliers.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.ductileironsuppliers.com\/product\/class-k8-dn450-ductile-iron-pipe-suppliers#primaryimage"},"image":{"@id":"https:\/\/www.ductileironsuppliers.com\/product\/class-k8-dn450-ductile-iron-pipe-suppliers#primaryimage"},"thumbnailUrl":"https:\/\/www.ductileironsuppliers.com\/wp-content\/uploads\/2025\/04\/te0wl-uv1ls.webp","datePublished":"2025-04-22T09:36:33+00:00","description":"\u0623\u0646\u0627\u0628\u064a\u0628 \u062d\u062f\u064a\u062f \u0627\u0644\u062f\u0643\u062a\u0627\u064a\u0644 \u0645\u0646 \u0627\u0644\u0641\u0626\u0629 K8 DN450: \u0645\u062b\u0627\u0644\u064a\u0629 \u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0645\u064a\u0627\u0647 \u0645\u062a\u0648\u0633\u0637\u0629 \u0627\u0644\u0636\u063a\u0637 \u0648\u0627\u0644\u0635\u0631\u0641 \u0627\u0644\u0635\u062d\u064a \u0648\u0627\u0644\u063a\u0627\u0632 \u0648\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u062d\u0631\u064a\u0642\u061b \u0639\u0645\u0631 \u0627\u0641\u062a\u0631\u0627\u0636\u064a \u064a\u0632\u064a\u062f \u0639\u0646 100 \u0639\u0627\u0645\u061b \u0648\u0635\u0644\u0627\u062a \u062f\u0641\u0639\u060c \u0648\u0648\u0635\u0644\u0627\u062a \u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u0629 \u0648\u0630\u0627\u062a \u062d\u0648\u0627\u0641\u061b \u0645\u0642\u0627\u0631\u0646\u0629 \u0633\u0644\u0633\u0644\u0629 K7-K12\u061b \u062a\u062a\u0648\u0627\u0641\u0642 \u0645\u0639 \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a ISO 2531\u060c EN 545\u060c GB\/T 13295\u061b \u0623\u0633\u0626\u0644\u0629 \u0648\u0623\u062c\u0648\u0628\u0629 \u0648\u062f\u0631\u0627\u0633\u0627\u062a \u062d\u0627\u0644\u0629.","breadcrumb":{"@id":"https:\/\/www.ductileironsuppliers.com\/product\/class-k8-dn450-ductile-iron-pipe-suppliers#breadcrumb"},"inLanguage":"ar","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.ductileironsuppliers.com\/product\/class-k8-dn450-ductile-iron-pipe-suppliers"]}]},{"@type":"ImageObject","inLanguage":"ar","@id":"https:\/\/www.ductileironsuppliers.com\/product\/class-k8-dn450-ductile-iron-pipe-suppliers#primaryimage","url":"https:\/\/www.ductileironsuppliers.com\/wp-content\/uploads\/2025\/04\/te0wl-uv1ls.webp","contentUrl":"https:\/\/www.ductileironsuppliers.com\/wp-content\/uploads\/2025\/04\/te0wl-uv1ls.webp","width":720,"height":720,"caption":"Class K8 DN450 ductile iron pipe suppliers"},{"@type":"BreadcrumbList","@id":"https:\/\/www.ductileironsuppliers.com\/product\/class-k8-dn450-ductile-iron-pipe-suppliers#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.ductileironsuppliers.com\/"},{"@type":"ListItem","position":2,"name":"Products","item":"https:\/\/www.ductileironsuppliers.com\/product"},{"@type":"ListItem","position":3,"name":"Class K8 DN450 ductile iron pipe suppliers"}]},{"@type":"WebSite","@id":"https:\/\/www.ductileironsuppliers.com\/#website","url":"https:\/\/www.ductileironsuppliers.com\/","name":"\u062c\u064a\u0646\u063a\u0627\u0646\u063a \u0644\u0648\u0647\u0643\u0627\u064a\u0648\u064a","description":"\u0645\u0648\u0631\u062f\u0648 \u0623\u0646\u0627\u0628\u064a\u0628 \u062d\u062f\u064a\u062f \u0627\u0644\u062f\u0643\u062a\u0627\u064a\u0644","publisher":{"@id":"https:\/\/www.ductileironsuppliers.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.ductileironsuppliers.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ar"},{"@type":"Organization","@id":"https:\/\/www.ductileironsuppliers.com\/#organization","name":"\u062c\u064a\u0646\u063a\u0627\u0646\u063a \u0644\u0648\u0647\u0643\u0627\u064a\u0648\u064a","url":"https:\/\/www.ductileironsuppliers.com\/","logo":{"@type":"ImageObject","inLanguage":"ar","@id":"https:\/\/www.ductileironsuppliers.com\/#\/schema\/logo\/image\/","url":"","contentUrl":"","caption":"Jingang LuoKaiwei"},"image":{"@id":"https:\/\/www.ductileironsuppliers.com\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/www.ductileironsuppliers.com\/ar\/wp-json\/wp\/v2\/product\/1873","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ductileironsuppliers.com\/ar\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.ductileironsuppliers.com\/ar\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ductileironsuppliers.com\/ar\/wp-json\/wp\/v2\/media\/1874"}],"wp:attachment":[{"href":"https:\/\/www.ductileironsuppliers.com\/ar\/wp-json\/wp\/v2\/media?parent=1873"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ductileironsuppliers.com\/ar\/wp-json\/wp\/v2\/tags?post=1873"},{"taxonomy":"products","embeddable":true,"href":"https:\/\/www.ductileironsuppliers.com\/ar\/wp-json\/wp\/v2\/products?post=1873"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}